Unit3SectionBa-3b课件人教版（0）九年级英语全册

Unit13Unit13We’retryingtosavetheearth!SectionB2a-3b在语境中理解，识记并运用本课时词汇：cruel,harmful,law…语言能力：1能运用本单元词汇和句式谈论环境污染和环境保护的话题。文化意识：2让学生对环境污染的状况有直观的认识，从而激发学生强烈的社会责任感和对未来发展的思考，进一步展开讨论如何保护环境。思维品质：3能运用阅读策略读取濒危动物的语篇大意，段落中心句和细节信息，并运用思维导图和复述方式帮助理解文章内容和架构。学习能力：4LanguagegoalspollutionWhatkindsofpollutiondoyouknow?waterpollutionairpollutionlandpollutionnoisepollutionHerearesomewordsrelatedtodifferentkindsofpollution.Putthemintheboxbelow.A.landpollutionB.airpollutionC.noisepollutionD.waterpollution2a.Listentotheinterview（采访）.CirclethekindsofpollutionthatJasonandSusantalkabout.While-listeningTip1:Catchthekeywordsduringlistening.煤，煤块

Whyistheairbadlypolluted?What:Theairis...andpeoplearewearing...Why:1.Therearemore...2.Factoriesburncoalandtheypollutetheairwithalotofblacksmoke.AirpollutionLookandtalk煤；煤块LookandtalkWhyisthelandpolluted?Landpollution

What:...toomuchrubbishandwaste...Why:1.Peoplearethrowingawaythings...2.Peoplearealsolitteringinpublicplaces...扔掉，抛弃乱扔

beautifulusedtobe...Now,...

uglyturninto丑陋的，难看的kindsofpollutioncausesairpollution1.Becausethereare__________ontheroadthesedays.2.Factoriesthatburncoalalso_________theairwithalotofblacksmoke.landpollution1.Peopleare_______________thingseveryday.2.Peoplearealsolitteringin

likeparks.morecarspollutethrowingawaypublicplaces2b.Listenagainandcompletethesentences.Tip2:Guesstheanswersbeforelistening.whyWatchandimitate（模仿）Howshouldtheproblemsbesolved?

ReadandunderlineJason'sandSusan'sideas.howsolutions优点；有利条件外卖食物有作用，有影响减少；砍倒花费木头的；木制的塑料的；塑料垃圾箱Role-playtheconversation.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!Completethemindmap.solutionsPeopleshould...Weshoulddosth.insteadofdoingSimplethingslikediongsth.canhelp.Someoneneverdosth.Remembertodosth.Whatcanwedotocutdownthepollution?

Post-listeningIfyouknow,pleasesayitoutloud.（知道就大声说出来）Weshouldalso...recyclebooksandpaperturnofftheshowerwhilewearewashingourhairturnoffthelightswhenweleavearoomdon’tusepapernapkinsplantmoretrees回收利用纸巾，餐巾纸playapartinvolunteeractivities参与playapartinwritetothegovernment

Howshouldtheproblembesolved?Whydoestheproblemhappen?底部；最下部thebottomoftheriverWhatistheproblem?howwhywhatpollutionGroupdiscussion1

Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!Thepollutioniseverywhere.It'stimetodosomethingtochange!Evaluationsheetofgroupwork(小组评价单）Items（条目）Criteria（标准）Facts（事实）1.Doyoutellhowtheproblemshouldbesolved?2.Doyoutelloneortwoadvantagesofyoursolutions?Presentation（陈述）3.Doyouhaveanypronunciationorgrammarmistakes?4.Doyoupresentloudlyandnaturally?Groupdiscussion2:Talkaboutthedifferentkindsofpollutionandshareyourideasforsolvingtheproblems.

(4人一组，每人分享一种污染的解决方法）Whatshouldwedotosavetheearth?tomorrowyesterdaytodayWhat?How?Problem...wasdirty/polluted....wasfullofrubbsh.thereis/are...why?CausesBecausethereis/are...Peoplearethrowing...Factoriesareputting...solutionsPeopleshould...WeshoulddoinsteadofdoingEveryoneshouldplayapartindoingDoyouknowtheseanimalsinourcountry?GoldenMonkey金丝猴CrestedIbis

朱

鹮SouthChinatiger

华南虎Chiru藏羚羊LeadinButnow,theyareendangered!readingWhatdoyouknowaboutsharks?Pre-readingPredictanswersaccordingtothetitleandthepicture.1.Wherecanyoufindthearticle?A.Fromanovel.B.Fromamagazine.C.Fromadiary.2.Whatdoesittalkabout?AirpollutionAnimalprotectionTravelFastreadingHowmanyparagraphsarethereinthispassage?Matchthemainideaswitheachparagraph.AskpeopletosavethesharkTalkaboutsharkfinsoup.Sharksareendangerednow.Manyhaveheardofsharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?1.Haveyouheardofsharkfinsoup?2.Whereisthesharkfinsouppopular?3.Whatwillhappenwhenyouenjoyabowofsharkfinsoup?CarefulreadingManyhaveheardofsharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?Readparagraph1andanswerthequestions.InSouthernChina.You’rekillingawholeshark.CarefulreadingReadparagraph2andanswerthequestions.1.Whatdopeopledotothesharks?2.Whyissharkfinningharmfultotheenvironment?3.Howmanysharksarecaughtandtradedeveryyear?4.

Howmuchhavethenumbersofsomekindsofsharksfalleninthelast20to30years?Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruelbutalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheocean’secosystem海洋生态系统.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.Whatdopeopledotothesharks?catchcutoffthrowbackcruelCarefulreadingReadparagraph2andanswerthequestions.CarefulreadingReadparagraph2andanswerthequestions.Byover90percent.Around70millionsharks.2.Whyissharkfinningharmfultotheenvironment?3.Howmanysharksarecaughtandtradedeveryyear?4.

Howmuchhavethenumbersofsomekindsofsharksfalleninthelast20to30years?Sharksareatthetopofthefoodchainintheocean’secosystem海洋生态系统.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.①Sharksareatthetopofthefoodchainintheocean’secosystem.②Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.whilereadingsharksarealsoendangered！Savingsharksmeanssavingourselves!Howcanwehelptosavethem?CarefulreadingReadparagraph3andfillinthechart.

WhoActionsto___________________________Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!GovernmentIndividual（个人）areteachingthepublicaboutfinningdeveloplaws(法律)tostopthesaleofsharkfins.helpsavethesharksprotectthesharksWildAidandtheWWF

SavetheSharks!提出问题：吃鱼翅就是杀害一整头鲨鱼(Para.1)Thesharksareendangered.abowlofsharkfinsoup=killingawholeshark解决问题：国际环保组织号召反对“猎翅”(Para.3)cutofftheirfinsandthrowthesharksbackintotheoceancruelandharmfultotheenvironmentaround70millionsharksarecaughtandtradedeveryyearbringdangertoalloceanlifethenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years分析问题：为什么要阻止“猎翅”(Para.2)environmentalprotectiongroups:teachingthepublicabout“finning”individuals:nomoresharkfins!Summaryproblemcausessolutionreasonsresultsgovernmentstodeveloplawstostopthesaleofsharkfins1.Manypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,______iftheirnumbersdrop,theocean’secosystemwillbeindanger.sowhensoalthoughifbutwhen3.Manythinkthatsharksaretoostrongtobeendangered,______theyarewrong.4._________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday______wedonotdosomethingtostopthesaleofsharkfins.butReadthepassageagainandfillintheblankswiththewordsinthebox.Althoughif时间因果转折条件Postreading(每位小组成员都要相处至少一个拯救濒危动物的方法，并推选一位同学总结在班级前说出来。)GroupworkDiscusshowtosavetheendangeredanimals?(每位小组成员都要想出至少一个拯救濒危动物的方法)Howcanweprotectouranimals？Weshouldprotecttheirlivingenvironment.Weshouldnoteatwildandendangeredanimals.Weshouldnotwearorbuytheclothesmadebyananimalfur.Weshouldaskthegovernmenttomakeseriouslawstoprotectthem.Whydon’tweaskmorepeopletotakeactionstoprotectthem.班级前说出来。)Manyhaveheardof

sharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruelbutalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.听说鱼翅汤切除代词放中间，名词放两边扔回不仅...而且对...有害beharmfultodoharmtobebadfornolonger&nomore

“不再”nolonger和not…anylonger侧重时间nomore和not…anymore侧重程度和数量在...顶部食物链海洋生态系统班级前说出来。)Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!inthelast/past+时间fallby下降了eg.ThisyearthepriceofTVfallsby20percent.fallto下降到eg.ThisyearthepriceofTVfallsto2000yuan.制定法律scientific[ˌsaɪənˈtɪfɪk]adj.科学上的，科学的sciencen.科学scientistn.科学家(每位小组成员都要相处至少一个拯救濒危动物的方法，并推选一位同学总结在班级前说出来。)Completethesentences.1.但是每一次当你喝一碗鱼翅汤的时候，你意识到你杀了一整只鲨鱼吗?Butdoyou________thatyou’rekillingawholeshark__________youenjoy____________sharkfinsoup?2.这种方式不仅残忍，而且对环境有害。Thisis________________,___________________theenvironment.3.如果它们的数量下降得太多，将会给所有的海洋生物带来危险。Iftheirnumbers________too________,itwill_______________alloceanlife.realizeeachtimeabowlofnotonlycruelbutalsoharmfultodroplowbringdangertoExercises(每位小组成员都要相处至少一个拯救濒危动物的方法，并推选一位同学总结在班级前说出来。)4.很多人以为鲨鱼永远都不会濒临灭绝，因为他们是食物链的最强者。Many________thatsharkscan_______________________becausetheyare_____________intheir______________.5.在过去的20年到30年，某些品种的鲨鱼数量下降了超过90%。___________________somekindsofsharks______________over90________________inthelast20to30years.6.到目前为止，没有任何科学研究表明，鱼翅对健康有好处，那么为什

么要吃它们呢?